import java.awt.*;
class Test1 extends Frame {
    public static void main(String[] args) {
        Test1 test1 = new Test1();
    }
    public Test1() {
        this.setTitle("TestForm");
        this.setSize(100,100);
        this.setVisible(true);
    }
}

import java.awt.*;
import java.awt.event.*;
class Test1 extends Frame implements WindowListener {
    public static void main(String[] args) {
        Test1 test1 = new Test1();
    }
    public Test1() {
        this.setTitle("TestForm");
        this.setSize(100,100);
        this.setVisible(true);
        this.addWindowListener(this);
    }
    public void windowActivated(WindowEvent e) {
    }
    public void windowDeactivated(WindowEvent e) {
    }
    public void windowClosed(WindowEvent e) {
        System.exit(0);
    }
    public void windowClosing(WindowEvent e) {
        dispose();
    }
    public void windowOpened(WindowEvent e) {
    }
    public void windowIconified(WindowEvent e) {
    }
    public void windowDeiconified(WindowEvent e) {
    }
}